Just try harder to find the driver on net...couse somewhere some place you can find the driver...I have the same problem just like you, finaly after searching and searching I can get the driver on net.....but I forget the address on the net and now I don't use RLT8139E.....

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I have a electric furnace that every other week the element comes on but the blower doesn't kick in. we turn the breakers off and let it cool down and then it starts back up and runs normal till next time. I pulled the blower and had it checked and it was just fine What next ?

I have no choice and open terminal then type “init 0′ (shutdown) :D. Then switch back to Windows XP to find the type of driver I need to install on Linux RHEL 5 and find solution over the internet. Noticed that I am using Realtek RTL8139/810x for NIC on Windows. After that, quickly go to the internet to find “how to install Realtek RTL8139/810x on Linux RHEL 5“. Then, I found that many crappy thing and **** suggestion over the forum. I read almost all Linux forum and follow all the sugesstion included to use ndiswrapper to install that Realtek NIC driver. But it doesn’t work on my machine. Yes I confess that I am new in this matter and perhaps ndiswrapper is too advanced for me.
Then, I have decided to try and error. I go to Realtek official website to see if I can get the specific driver for Linux. Found that:
RTL8100B(L)/RTL8100C(L)/RTL8101L/RTL8139C(L)RTL8139C(L)+/RTL8139D(L)/RTL8100(L)RTL8130/RTL8139B(L)
all at the same download page. Then I made I my own conclusion that, Realtek8100 or Realtek8101 can be use as well since I can’t find any RTL8139 driver for linux over the internet. Too not wasting your time to read my crappy story, then download this driver over HERE. DOWNLOAD DRIVER HERE, before that make sure you login as root. After download complete, just write the following command on your terminal:
[root@localhost ~]# cd Desktop (i put the file on Desktop)[root@localhost Desktop]# tar xvvf r8101-1.001.00.tar.bz2..[root@localhost Desktop]# cd r8101-1.001.00[root@localhost r8101-1.001.00]# make clean modules...[root@localhost r8101-1.001.00]# make install..[root@localhost r8101-1.001.00]# depmod -a[root@localhost r8101-1.001.00]# insmod ./src/r8101.ko[root@localhost r8101-1.001.00]# lsmod | grep r8101r8101 28688 0 <—if this appear, then you’ve installed the driver successfully:)
Then check if your ip have configured correctly or not
[root@localhost r8101-1.001.00]# ifconfig -aeth0Link encap:Ethernet HWaddr 00:1C:25:4D:9A:0AXXXXX XXXX MTU:1500 Metric:1RX packets:0 errors:0 dropped:0 overruns:0 frame:0TX packets:0 errors:0 dropped:0 overruns:0 carrier:0collisions:0 txqueuelen:1000RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)Interrupt:177 Base address:0×2000lo Link encap:Local Loopbackinet addr:127.0.0.1 Mask:255.0.0.0inet6 addr: ::1/128 Scope:HostUP LOOPBACK RUNNING MTU:16436 Metric:1RX packets:1611 errors:0 dropped:0 overruns:0 frame:0TX packets:1611 errors:0 dropped:0 overruns:0 carrier:0collisions:0 txqueuelen:0RX bytes:4526976 (4.3 MiB) TX bytes:4526976 (4.3 MiB)sit0 Link encap:IPv6-in-IPv4NOARP MTU:1480 Metric:1RX packets:0 errors:0 dropped:0 overruns:0 frame:0TX packets:0 errors:0 dropped:0 overruns:0 carrier:0collisions:0 txqueuelen:0RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
Since you can see the ethX which X is 0,1,2,3 (mine is eth0)…. instead of just lo and sit0, then its working now. NIC driver has been installed successfully.
Finally, on your terminal type:
[root@localhost ~]# system-config-network

You can see on hardware tab there are Realtek Semiconductor with status ok. Then, move to Devices tab, and click New > Ethernet connection > Forward > Choose REaltek Semiconductor…. > Forward > then up to you whether want to set DHCP or set static IP.
Now you can open Firefox or Konqueror and start browsing internet happily:)
[p/s] If check again on your terminal with ifconfig -a it should return your local ip address under the eth0 which is 192.168.1.* ; * is 2-255

Go to the Device manager and bring up the properties to the realtek 8185 device. There is a tab called Power Management. Click on this tab. There is a checked checkbox that says Allow the computer to turn off this device to save power. Uncheck this box. This should stop the random disconnects.